All Answers 358180 Answers

0

cos(a) = 190/240 => a = [input]arccos(190/240)[/input]
b = 90°
sin(c) = 190/240 => c = [input]arcsin(190/240)[/input]

a + b + c = [input]arccos(190/240)+90+arcsin(190/240)[/input] has to be 180 °

GuestJul 25, 2013

Jul 24, 2013

+10

0

PhysicsPIguyJul 24, 2013

0

That's the right answer.

GuestJul 24, 2013

0

"Car is sold....for $500"
To the seller it's a loss of $3500 of the $4000 cost.
hence "profit" -(3500/4000)*100 % = -87.50%

GuestJul 24, 2013

0

Quote:
by bridysep » Tue Jul 23, 2013 11:56 am

simplify √72+2√20

My effort is:

√(2*6*6) + 2*√(2*2*5)

6*√2+ 4*√5

GuestJul 24, 2013

0

"how do I solve this equation 2-5[(-10)/(-5)*2-35] "

The method is to start with the INNERMOST brackets and work outwards from there:
[(-10)/(-5)*2 -35] = [(+2)*2-35] = [-31]

and now substitute in the remainder of your sum:

2 - 5*[-31] = 2 + 5*31 = 157

GuestJul 24, 2013

0

Long answer:
If you want to use web2.0 calculator:
Your sum is shorthand for ArcTan of (388/1150):
and assuming that you are working in 360 degrees,

Press "2nd" (which is going to select the inverse of what you press next):
then "Tan"
then (
then 388
then the symbol for "divide by", which shows up as "/"
then 1150
then )
then "="
Your answer is in degrees and decimals of degree.

GuestJul 24, 2013

0

I meant completing, sorry :3

GuestJul 24, 2013

0

"Competing the square" ->
n²+100 = n²+20n+100-20n = (n+10)²-20n

With (a-b)(a+b) = a² - b² ->
(n+10)² - sqrt(20n)² = (n+10)² - 20n
(n+10)² = a²
sqrt(20n)² = b²
=> (n+10+sqrt(20n))(n+10-sqrt(20n)) = n²+100

GuestJul 24, 2013

Jul 23, 2013

0

56(78/8) cancels to become 7(78/1), which equals 564. 21 plus 564 equals 585. Checking with a calculator gives the same result

GuestJul 23, 2013

Jul 22, 2013

+4

0

Infinity is not a specific quantity which you can found by any formula its just denote a very very large amount.
So there is no any formula to find infinity.

tejasdeshmukh02Jul 22, 2013

+4

0

Just multiply both sides by 3 , you will get your answer...

tejasdeshmukh02Jul 22, 2013

+12

0

Be more specific, there are some angles that require some thinking before actual calculations.
The very basic formula is :

360 - The angle you have

It gives you the missing angle (In case only 2 angles are involved in the problem)

CrazyBoy494Jul 22, 2013

+12

0

Nope, 87.5% is what you save aka profit. 12.5% could be the spent money.

CrazyBoy494Jul 22, 2013

Jul 21, 2013

+3146

0

3*ln(3)+3*ln(c)
3*(ln(3)+ln(c))
3*ln(3*c)

adminJul 21, 2013

+3146

0

long: x
wide: y

redmist:
A pasture is twice as long as it is wide

redmist:
Its are is 115,299ft

x*y = 115,299

[input]solve(x=2*y, x*y=115299)[/input]
[input]{x=-480.2062057075064498, y=-240.1031028537532249, x=480.2062057075064498, y=240.1031028537532249}[/input]

adminJul 21, 2013

+3146

0

[input]plot(((x)/3)*0.8, 250, x=-132.891..1082.109, -197.208..532.636)[/input]

((x)/3)*0.8 => 250
x/3 => 250 / 0.8
x => 3* 250/0.8
x => 937.5

adminJul 21, 2013

0

Isn't that a loss?

GuestJul 21, 2013

+3146

0

[input]299792458[m/s]*4.25year in km[/input]

adminJul 21, 2013

Jul 20, 2013

+3146

0

[input]35.00 * 5%[/input]

adminJul 20, 2013

+3146

0

[input](60 - x) + x + (35 - x) = 80[/input]

adminJul 20, 2013

+12

0

If you didn't yet, It's $1.75

[input]35/100*5[/input]

CrazyBoy494Jul 20, 2013

+12

0

If you're asking if that's correct, yes it is.

CrazyBoy494Jul 20, 2013

+12

0

1 Light year (In kilometers) is :

[input]9.4605284 × 10^12[/input]

Multiply that by 4.25 and you'll have your answer.

[input]9.4605284*10^12*4.25[/input]

Hope it helped ya

CrazyBoy494Jul 20, 2013

+12

0

[input]500*100/4000[/input]
500 is 12.5% of 4000

[input]100-12.5[/input]
This is the profit as a percentage of cost.

Hope it helped

CrazyBoy494Jul 20, 2013

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